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1,055,388

1,055,388 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

1,055,388 (one million fifty-five thousand three hundred eighty-eight) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 37 × 2,377. Its proper divisors sum to 1,474,804, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x101A9C.

Abundant Number Cube-Free Evil Number Happy Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
30
Digit product
0
Digital root
3
Palindrome
No
Bit width
21 bits
Reversed
8,835,501
Square (n²)
1,113,843,830,544
Cube (n³)
1,175,537,412,630,171,072
Divisor count
24
σ(n) — sum of divisors
2,530,192
φ(n) — Euler's totient
342,144
Sum of prime factors
2,421

Primality

Prime factorization: 2 2 × 3 × 37 × 2377

Nearest primes: 1,055,387 (−1) · 1,055,399 (+11)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 37 · 74 · 111 · 148 · 222 · 444 · 2377 · 4754 · 7131 · 9508 · 14262 · 28524 · 87949 · 175898 · 263847 · 351796 · 527694 (half) · 1055388
Aliquot sum (sum of proper divisors): 1,474,804
Factor pairs (a × b = 1,055,388)
1 × 1055388
2 × 527694
3 × 351796
4 × 263847
6 × 175898
12 × 87949
37 × 28524
74 × 14262
111 × 9508
148 × 7131
222 × 4754
444 × 2377
First multiples
1,055,388 · 2,110,776 (double) · 3,166,164 · 4,221,552 · 5,276,940 · 6,332,328 · 7,387,716 · 8,443,104 · 9,498,492 · 10,553,880

Sums & aliquot sequence

As consecutive integers: 351,795 + 351,796 + 351,797 131,920 + 131,921 + … + 131,927 43,963 + 43,964 + … + 43,986 28,506 + 28,507 + … + 28,542
Aliquot sequence: 1,055,388 → 1,474,804 → 1,145,100 → 2,479,668 → 3,306,252 → 4,408,364 → 3,641,860 → 4,051,196 → 3,107,956 → 2,355,404 → 1,807,300 → 2,692,412 → 2,171,524 → 1,721,624 → 1,696,576 → 2,226,962 → 1,113,484 — unresolved within range

Continued fraction of √n

√1,055,388 = [1027; (3, 8, 1, 1, 10, 2, 2, 61, 1, 6, 19, 16, 1, 12, 1, 16, 19, 6, 1, 61, 2, 2, 10, 1, …)]

Period length 28 — the block in parentheses repeats forever.

Representations

In words
one million fifty-five thousand three hundred eighty-eight
Ordinal
1055388th
Binary
100000001101010011100
Octal
4015234
Hexadecimal
0x101A9C
Base64
EBqc
One's complement
4,293,911,907 (32-bit)
Scientific notation
1.055388 × 10⁶
As a duration
1,055,388 s = 12 days, 5 hours, 9 minutes, 48 seconds
In other bases
ternary (3) 1222121201110
quaternary (4) 10001222130
quinary (5) 232233023
senary (6) 34342020
septenary (7) 11653635
nonary (9) 1877643
undecimal (11) 660a24
duodecimal (12) 42a910
tridecimal (13) 2ac4b9
tetradecimal (14) 1d688c
pentadecimal (15) 15ca93

As an angle

1,055,388° = 2,931 × 360° + 228°
228° ≈ 3.979 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零五萬五千三百八十八
Chinese (financial)
壹佰零伍萬伍仟參佰捌拾捌
In other modern scripts
Eastern Arabic ١٠٥٥٣٨٨ Devanagari १०५५३८८ Bengali ১০৫৫৩৮৮ Tamil ௧௦௫௫௩௮௮ Thai ๑๐๕๕๓๘๘ Tibetan ༡༠༥༥༣༨༨ Khmer ១០៥៥៣៨៨ Lao ໑໐໕໕໓໘໘ Burmese ၁၀၅၅၃၈၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055388, here are decompositions:

  • 17 + 1055371 = 1055388
  • 29 + 1055359 = 1055388
  • 41 + 1055347 = 1055388
  • 67 + 1055321 = 1055388
  • 127 + 1055261 = 1055388
  • 137 + 1055251 = 1055388
  • 157 + 1055231 = 1055388
  • 197 + 1055191 = 1055388

Showing the first eight; more decompositions exist.

Hex color
#101A9C
RGB(16, 26, 156)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.26.156.

Address
0.16.26.156
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.26.156

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 5, 5388 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5388-05-01 (DMMYYYY (Euro, single-digit day))
  • 5388-10-05 (MMDYYYY (US, single-digit day))
  • 5388-05-10 (DDMYYYY (Euro, single-digit month))
Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,055,388 and was likely granted around 1912.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.